Abstract: The battery of the invention includes at least one electrochemical cell for use and recharging underwater, particularly seawater, at a pressure at or greater than atmospheric pressure. The battery has an anode, a cathode, an associated electrolyte in a housing, and a pressure compensation fluid which has a density greater than water, but preferably between the density of water and the density of the electrolyte. Preferably the pressure compensation fluid has a density of about 1.2 g/cm.sup.3, and is non-conductive. Apparatus to compensate for changes in volume are provided, as are components for the escape of internally generated gases.

Abstract: A method for calibrating a flow cytometer or fluorescence microscope and for quantitating binding proteins, such as antibodies. Populations of microbeads are provided which are in equilibrium with a saturating amount of fluorescently-labeled protein. The microbeads may have an incorporated fluorescent dye which has a strong signal in a selected channel of a flow cytometer, but no signal in other channels.

Abstract: A plasma arc torch heat based apparatus and method converts a quantity of particulate soil having a first set of engineering properties into a selected number of smaller quantities each having improved engineering properties differing from the first set of engineering properties and makes practical utilization of the smaller quantities for applications in which the first set of engineering properties were not suited. The apparatus includes a rotatable kiln which is positionable at an angle to horizontal such that soil is received in an upper end and discharged at a lower end thereof. The kiln is heated to a controlled temperature based on the properties of the soil before treatment and the desired improved properties after treatment to meet application requirements.

Abstract: The apparatus of the invention has a float portion, a drain head portion, and an outlet pipe portion which are sequentially connected. The float pivotally supports the drain head slightly below the surface of water in a sediment basin. The outlet pipe is connected rigidly to the drain head at the inlet end and flexibly to a drain line at the outlet end. As the water fills and is drained from the sediment basin, the float and drain head are gradually raised and lowered and the outlet pipe approaches horizontal. The float surrounds the drain head and has a debris guard which is pivotally mounted to keep a gap preventing debris from entering the outlet pipe closed. An orifice within the outlet pipe and an air vent connected thereto are variable to control the water flow rate from the basin.

Abstract: A framework is provided for a tent canopy which is capable of being erected and collapsed quickly and simply. A cart is able to support the tent framework during erecting and collapsing and is used for transporting between erection sites. The framework has a center post which is pivotally attached to four roof beams which are oriented at 90 degree increments. Each roof beam is pivotally attached to a leg and each leg to two side bars, which side bars are linearly connectable to a mating side bar mounted on an adjacent leg. Each leg pivots to a vertical orientation and rests on the ground. The framework uses a cord and pulley apparatus for collapsing the cloth canopy which covers the framework.

Abstract: The invention provides an apparatus and method for shrinking portions of a shrinkable film beneath leading and trailing transverse end seams of a film wrapped product. First and second controllable sources of heated fluid are connected to first and second nozzles positioned beneath a conveyor on which the film wrapped product is conveyed. The nozzles are arranged to travel back and forth below the conveyor and their travel is timed such that the heated fluid from the first nozzle heats only the leading seam and the heated fluid from the second nozzle heats only the trailing seam.

Abstract: Method of and apparatus for cutting and heat sealing a film with a smooth seam which extends substantially the transverse width of a wrapped package utilizes a mechanism having a cool clamping portion and a hot sealing portion which are sequentially actuated. The clamping portion, with segments upstream and downstream of a sealing position, is activated to firmly hold the film against a base plate. The sealing portion is located between the upstream and downstream segments of the clamping portion. The heated sealing portion is brought into contact with the film as a cutting member cuts the film. The sealing head is retracted as the clamping portion holds the film to allow longitudinal film shrinkage and prevent transverse film shrinkage of the film. The clamping portion separates and the next package in a succession of film-enclosed packages is moved downstream of the sealing position.

Abstract: An apparatus and method are provided for transplanting seedlings from a starting tray into soil. The plant starting tray is positioned on a table surface and moved so that a first column of seedling cells is aligned over a slot formed through the table. A plant pusher unit pushes a seedling from its seedling cell into a transfer tube. A pressure differential is used to move the seedling from the transfer tube through a flexible seedling valve into a prepared hole in soil.

Abstract: A convertible carrying case and work platform for small electronic devices, particularly notebook computers, which is adapted to be used as a carrying case for the electronic device as well as a work platform. The carrying case has a case structure which holds the electronic device and a flexible top cover portion capable of forming a rolled portion that elevates the case structure when the case is supported in the wearer's lap and used when the wearer is sitting. The top cover, or a releasable bottom piece, may be rolled to form a rolled portion for use as an elevating device in sitting work platform position. A strap arrangement for the case permits a wearer to support the case over his shoulder to transport the device, or to position the case in a generally horizontal position in front of and against the abdominal area of the wearer.

Abstract: An automated timed manual performance (TMP) system which includes a base unit having attached manual dexterity test components. Connected to the base is a reaction sensor which allows determination of the exact time of beginning and ending the manual dexterity task(s). The sensor is also connected to either a personal computer or a direct readout device. The system also optionally includes software to guide an operator through administration of a TMP test, and to display and analyze the results of the test.

Abstract: A plumb apparatus is described in two embodiments having common operational and construction features. In a first embodiment, a beam projector is mounted within an upper end of an elongate pipe which is slidingly fit in an angularly pivotable mounting. The lower end of the pipe is formed with a point adapted to contact a target point on a supporting surface when a base in which the angularly pivotable mounting is held is placed on the surface. A bi-axial level is attached to the upper end of the pipe to ascertain vertical orientation of the pipe, which orientation is maintained by the weight of the base structure which is in contact with the supporting surface. The beam projector is activated to project a beam to a target point on the ceiling above. According to the second preferred embodiment, a beam projector is mounted into an upper end of a pipe, the lower end of which is mounted into a ball. The ball is placed into a cup which is engaged by a clamp cover having an opening through which the pipe extends.

Abstract: An electrical integrity test system for boats provides circuitry for evaluating the integrity of the boat's electrical distribution AC grounding system when the boat is connected to a dock's electrical distribution system, and the integrity of the boat's galvanic isolator. The electrical integrity test system also includes a polarity detecting circuit that will activate an alarm when it detects a dock's hot and neutral conductors to be reversed. Additionally, the electrical integrity test system includes an AC ground current detecting circuit that continuously monitors the boat's AC grounding conductor for the presence of AC current. A system controller controls selected functions and sequence of functions of the described circuits.

Abstract: A disposable cover is provided for a stethoscope head to prevent the spread of harmful organisms, bacteria and viruses between patients resulting from use of a stethoscope. The cover is formed from a substantially thin, impervious, flexible, stretchable sound transmitting sheet material, as a seamless casing with an open end wide enough to permit introduction of the stethoscope head into the casing; an opposite closed end and an intermediate neck section of reduced size and shaped so is to be able to receive the stethoscope head. The cover is essentially universal and accommodates most stethoscope styles heads as currently used. Variations of the cover relate to the shape of the cover and to the manner in which the open end is formed.

Abstract: The invention provides an endless conveyor having a pair of gaps in its product conveying surface. As a film-wrapped product is conveyed across the gaps, a sensor aligned with the second gap signals the initiation of a shrinking sequence by which a pair of upwardly directed nozzles impinge hot air on the portion of film below and inboard of the transverse film seals. As the flow of hot air begins, a pair of magnetic clutches are activated to transmit power from a drive to a pair of shafts on which each clutch is respectively mounted. The drive, through the clutches, causes each of the nozzles to rotate about an axis so that the stream of hot air follows the travel of the wrapped product to maximize the time of hot air exposure without slowing the speed of product travel. At the end of the arc through which the nozzle is pivoted, the hot air flow is shut off, the magnetic clutches are deactivated, and a biasing spring causes the nozzles to return to their respective starting positions.

Abstract: A liquid dispenser for withdrawing liquids from one or more containers having a mouth and bottom and side walls joined at a juncture comprised of a container support to position the containers with their mouths over the lowermost part of the wall juncture, a probe support spaced above the container support, and a plurality of probes slidably supported on the probe support above the container support, each probe including a lower end with a curved face corresponding to the curvature of the juncture, each probe being moveable between a raised position above the mouth of a container, and a lowered position extending through the mouth of the container and into contact with the lowermost part of the interior of said container at the juncture, and a pump to draw liquid from the container upwardly through the probe.

Abstract: A liquid dispenser for withdrawing liquids from one or more containers having a mouth and bottom and side walls joined at a juncture comprised of a container support to position the containers with their mouths over the lowermost part of the wall juncture, a probe support spaced above the container support, and a plurality of probes slidably supported on the probe support above the container support, each probe including a lower end with a curved face corresponding to the curvature of the juncture, each probe being moveable between a raised position above the mouth of a container, and a lowered position extending through the mouth of the container and into contact with the lowermost part of the interior of said container at the juncture, and a pump to draw liquid from the container upwardly through the probe.

Abstract: The invention provides a number of embodiments of slidable brackets adapted for mounting building panels, especially roof members mounted to structural members in a manner to permit limited uni-axial or bi-axial movement. A preferred embodiment has a channel shaped base member and a channel shaped slider member. The base member is adapted to be secured to an existing roof or to a building frame component. The slider member is formed to slidingly straddle and slide on the base member. For uni-axial motion, the slider member has a single pair of longitudinal slots formed in each of its sides through which a bolt or the like passes and which also passes through a mating bolt hole in the side of the base member. For bi-axial motion, a pair of slots is formed in an attached beam whose axis extends in a direction perpendicular to the axis of the longitudinal slots in the slider member.

Abstract: The process or the present invention serves to remediate and reduce the volume of waste materials in a landfill site and increases the useful life of the treated landfill. The process steps involve drilling a series of holes into the waste material mass at proper spacing, inserting and operating a plasma arc torch in each drilled hole to pyrolize, remediate and vitrify the waste materials and allowing the melted materials to cool and harden. During the process, a gaseous by-product is produced and collected in a hood which is attached to scrubbing and chemical cleaning apparatus. The resultant gases are commercially useful as fuel gas and the vitrified residue is significantly smaller in volume than the original waste material volume, thus substantially extending the useful life of the landfill site and ultimately providing a firm foundation for construction.